EOS 1Dx Mark III Specifications

Article ID: ART176235 | Date published: 02/03/2020 | Date last updated: 02/11/2020


Specifications list for the EOS 1Dx Mark III.





Type Digital single-lens reflex AF/AE camera
Recording media

CFexpress memory card

Type B compatible: 2 card slots

Image sensor size Approx. 35.9×23.9 mm
Compatible lenses

Canon EF lens product groups

Excluding EF-S and EF-M lenses

(Effective angle of view is approx. equivalent to the indicated focal length.)

Lens mount Canon EF mount

Image sensor

Type CMOS sensor
Effective pixels

Approx. 20.1 megapixels

Rounded to the nearest 100,000.

Aspect ratio 3:2
Dust deletion Auto/Manual, Appending Dust Delete Data

Recording system

Recording format DCF 2.0
Image type

JPEG (8-bit), HEIF (10-bit), RAW (14-bit Canon original)

RAW+JPEG simultaneous recording possible

RAW+HEIF simultaneous recording possible

12 bit A/D conversion processing is applied for RAW images shot with the electronic shutter.

Pixels recorded
Image Quality Pixel Count
JPEG L Approx. 20.0 megapixels (5472×3648)
M1 Approx. 12.7 megapixels (4368×2912)
M2 Approx. 8.9 megapixels (3648×2432)
S Approx. 5.0 megapixels (2736×1824)
HEIF L Approx. 20.0 megapixels (5472×3648)
RAW RAW/C-RAW Approx. 20.0 megapixels (5472×3648)

Rounded to the nearest 100,000.

Recording features Still photo/movie separate, Still photo recording options, Movie recording options, Still photo record/play, Movie record/play
Folder creation and selection Available
File naming Preset code, User Defined 1, User Defined 2
File numbering Continuous, Auto reset, Manual reset

Image processing during shooting

Picture Style Auto, Standard, Portrait, Landscape, Fine Detail, Neutral, Faithful, Monochrome, User Defined 1–3
White balance

Auto (Ambience priority), Auto (White priority), Preset (Daylight, Shade, Cloudy, Tungsten light, White fluorescent light, Flash), Custom (5 settings), Color temperature setting (approx. 2500–10000 K)

White balance correction and bracketing available

Flash color temperature information transmission possible

White balance correction

Blue/amber correction: ±9 levels

Magenta/green correction: ±9 levels

White balance bracketing ±3 stops, in 1 stop increments
Automatic image brightness correction Auto Lighting Optimizer
Noise reduction Applicable to high ISO speed shots and long exposures
Highlight tone priority Available
Lens aberration correction Peripheral illumination correction, Distortion correction, Digital Lens Optimizer, Chromatic aberration correction, Diffraction correction


Type Eye-level pentaprism
Field of view (coverage) Vertical/Horizontal approx. 100% (with eyepoint approx. 20 mm)
Magnification Approx. 0.76× (â1 mâ1 with 50 mm lens at infinity)
Eyepoint Approx. 20 mm (from eyepiece lens end at –1 m–1)
Dioptric adjustment range Approx. –3.0 to +1.0 m–1 (dpt)
Eyepiece shutter Built-in
Focusing screen Fixed
Mirror Quick-return type
Depth-of-field preview Available

Autofocus (viewfinder shooting)

Focus method TTL secondary image-registration, phase-difference detection with the dedicated AF sensor
AF points

191 points max. (cross-type AF points: 155 points max.)

Number of available AF points, Dual cross-type AF points, and Cross-type AF points vary depending on the lens used.

Dual cross-type focusing at f/2.8 with center AF point

Focusing brightness range EV –4 to 21 (with the center AF point supporting f/2.8, One-Shot AF, room temperature, ISO 100)
Focus operation One-Shot AF, AI Servo AF, manual focusing (MF)
AF area selection mode Spot AF (manual selection), 1-point AF (manual selection), AF point expansion (manual selection, vertical/horizontal), AF point expansion (manual selection: surround), Zone AF (manual selection of zone), Large zone AF (manual selection of zone), Auto selection AF
Subject detection AF

EOS iTR AF setting (can recognize color information, faces, and heads)

iTR: Intelligent Tracking and Recognition

AF Configuration Tool Cases 1–4, Case A
AI Servo AF characteristics Tracking sensitivity, Acceleration/deceleration tracking
AF fine adjustment AF Microadjustment (All lenses by the same amount, Adjust by lens)
AF-assist beam Fired by an external flash unit for EOS cameras

Autofocus (Live View shooting/Movie recording)

Focus method Dual Pixel CMOS AF
AF method Face+Tracking, Spot AF, 1-point AF, Expand AF area (vertically/horizontally), Expand AF area: Around, Zone AF, Large Zone AF: Vertical, Large Zone AF: Horizontal
Available AF point positions

Max. 3869

When selected with the Multi-controller

Available AF areas when automatically selected Max. 525
Eye Detection AF Available
Magnified view Approx. 5×/10×
AF area

Horizontal: Approx. 90%, Vertical: Approx. 100%

Horizontal: Approx. 80%, Vertical: Approx. 80%

Varies depending on the lens used

Manual focus (MF) MF peaking, Focus guide

[Live View shooting]

AF operation One-Shot AF, Servo AF
Continuous AF Available
Focusing brightness range

EV –6 to 18

(f/1.2, center AF point, at room temperature, ISO 100, One-Shot AF)

AF Configuration Tool Cases 1–4, Case A
Servo AF characteristics Tracking sensitivity, Acceleration/deceleration tracking

[Movie recording]

Focusing brightness range

EV –4 to 18

(f/1.2, center AF point, at room temperature, ISO 100, One-Shot AF, 29.97 fps)

Movie Servo AF Available
Movie Servo AF characteristics Tracking sensitivity, AF speed

Exposure control

Metering mode

Viewfinder shooting: 216-zone (18×12) TTL open-aperture metering with an approx. 400,000-pixel RGB+IR metering sensor

Live View shooting/movie recording: 384-zone (24×16) metering with signals from the image sensor

Metering mode

Viewfinder shooting:

Evaluative metering

Partial metering (approx. 6.2% of screen)

Spot metering (approx. 1.5% of screen)

Options include spot metering linked to AF points and multi-spot metering

Center-weighted average metering

Live View shooting: Evaluative metering, Partial metering (approx. 5.8% of screen), Spot metering (approx. 2.9% of screen)

Movie recording: Center-weighted average metering, Evaluative metering

Set automatically based on shooting conditions

Focusing brightness range

Viewfinder shooting: EV 0 to 20 (at room temperature, ISO 100)

Live View shooting/movie recording: EV –3 to 20 (at room temperature, ISO 100)

Shooting mode

Still photo shooting:

Program AE, Shutter-priority AE, Aperture-priority AE, Manual exposure, Bulb exposure, Custom shooting modes (C1/C2/C3)

Movie recording:

Program AE, Shutter-priority AE, Aperture-priority AE, Manual exposure, Custom shooting modes (C1/C2/C3)

ISO speed (recommended exposure index)

Still photo shooting:

ISO Auto (automatically set within ISO 100–102400), manually set within ISO 100–102400 (in 1/3- or 1-stop increments), expandable to L (equivalent to ISO 50), H1 (equivalent to ISO 204800), H2 (equivalent to ISO 409600), or H3 (equivalent to ISO 819200)

ISO 200–102400 with Highlight tone priority set

Movie recording:

Program AE/Av/Tv: ISO Auto (automatically set within ISO 100–25600), expandable to H1 (equivalent to ISO 204800)

M: ISO Auto (automatically set within ISO 100–25600), manually set within ISO 100–25600 (in 1/3- or 1-stop increments), expandable to H1 (equivalent to ISO 204800)

ISO 200–25600 with Highlight tone priority set

ISO speed settings

Still photo shooting:

ISO speed range, Auto range, Minimum shutter speed

Movie recording:

ISO speed range, Max for Auto

Exposure compensation

Manual: ±5 stops in 1/3- or 1/2-stop increments (viewfinder shooting), or ±3 stops in 1/3- or 1/2-stop increments (Live View shooting, movie recording)

AEB: ±3 stops in 1/3- or 1/2-stop increments (can be combined with manual exposure compensation)

AE lock

Still photo shooting:

Auto: AE lock when focus is achieved can be enabled or disabled for each metering mode with a Custom Function

Manual: With AE lock button

Movie recording: With AE lock button

Flicker reduction Available (viewfinder shooting)

Multiple exposures

Shooting method Function/control priority, Continuous shooting priority
Number of multiple exposures 2 to 9 exposures
Multiple-exposure control Additive, Average, Bright, Dark

HDR shooting (still photo HDR PQ)

Recording format HEIF
Bit depth 10-bit
Color sampling YCbCr 4:2:2
HDR specification ITU-R BT.2100 (PQ)


Type Electronically controlled, focal-plane shutter
Shutter mode

Viewfinder shooting: Mechanical

Live View shooting: Mechanical, Electronic 1st-curtain, Electronic

Shutter speed

Mechanical/Electronic 1st-curtain set: 1/8000 sec. to 30 sec., Bulb

Electronic set: 1/8000 sec. to 0.5 sec.

Max. shutter speed with flash sync: 1/250 sec.

Setting range differs when recording movies

Drive system

Drive mode Single shooting, High-speed continuous shooting, Medium-speed continuous shooting, Low-speed continuous shooting, Single Soft shooting, Soft continuous shooting, Soft low speed continuous shooting, Self-timer: 10 sec, Self-timer: 2 sec
Continuous shooting speed
Drive Mode Viewfinder Shooting Live View Shooting*2
High-speed continuous
One-Shot AF

Max. approx. 16 shots/sec.

(setting range: 3–16 shots/sec.)

Max. approx. 20 shots/sec.
AI Servo AF/
Servo AF
Medium-speed continuous shooting One-Shot AF

Approx. 10 shots/sec.

(setting range: 2–15 shots/sec.)

Approx. 10 shots/sec.*3
AI Servo AF/
Servo AF
Low-speed continuous
One-Shot AF

Approx. 3.0 shots/sec.

(setting range: 1–14 shots/sec.)

Approx. 3.0 shots/sec.
AI Servo AF/
Servo AF
Soft continuous shooting

Approx. 8.0 shots/sec.

(setting range: 2–8 shots/sec.)

Approx. 10 shots/sec.*3
Soft low speed continuous

Approx. 3.0 shots/sec.

(setting range: 1–7 shots/sec.)

Approx. 3.0 shots/sec.

1: May be lower depending on conditions such as shutter speed, aperture, state of aperture during continuous shooting, use of flash, use of flicker reduction, battery level, temperature, subject conditions, brightness (as when shooting under low light), type of lens, type of power, and if internal memory becomes full (which temporarily disables shooting).

2: With the electronic shutter, continuous shooting speed is equivalent to the speed in high-speed continuous shooting.

3: With the mechanical shutter, continuous shooting speed is approx. 8.0 shots/sec.

Maximum burst

JPEG Large: 1,000 shots or more

HEIF Large: 1,000 shots or more

RAW: 1,000 shots or more

RAW+JPEG Large: 1,000 shots or more

RAW+HEIF Large: approx. 350 shots

In viewfinder shooting with a 325 GB card conforming to Canon testing standards

Varies depending on shooting conditions (such as when JPEG/HEIF image quality is set to 8, as well as the subject, memory card brand, ISO speed, Picture Style, and Custom Functions)

External Speedlite

Compatible Speedlites EL/EX series Speedlites
Flash metering E-TTL II autoflash
Flash exposure compensation ±3 stops in 1/3- or 1/2-stop increments
FE lock Available
PC terminal Available
Flash control Flash function settings, Flash Custom Function settings

Movie recording

Normal movies
  Canon Log
Recording format MP4
Compression MPEG-4 H.264/AVC MPEG-4 H.265/HEVC
Video signal recording range Full range (0–255) Full range (128–1016)
Color sampling YCbCr 4:2:0 (8-bit) YCbCr 4:2:2 (10-bit)
Color Matrix Rec.ITU-R BT.709 Rec.ITU-R BT.709/BT.2020
Audio ALL-I/IPB AAC/Linear PCM*
IPB (Light) AAC

AAC or Linear PCM can be selected in [C.Fn7-7: Audio compression]

RAW movies
  Canon Log
Recording format RAW (12-bit)
Audio Linear PCM
Movie recording size RAW (5472×2886), 4K DCI (4096×2160), 4K DCI cropped (4096×2160), 4K UHD (3840×2160), Full HD (1920×1080)
Frame rate

119.9p/59.94p/29.97p/24.00p/23.98p (with NTSC)

100.0p/50.00p/25.00p/24.00p (with PAL)

119.9p/100.0p used for High Frame Rate movies

Compression method ALL-I (For editing), IPB (Standard), IPB (Light)
Bit rate
RAW (59.94p/50.00p) Approx. 2600 Mbps
RAW (29.97p/25.00p/24.00p/23.98p) Approx. 1800 Mbps
4K DCI (59.94p/50.00p)/ALL-I Approx. 940 Mbps
4K DCI (59.94p/50.00p)/IPB Approx. 230 Mbps
4K DCI (29.97p/25.00p/24.00p/23.98p)/ALL-I Approx. 470 Mbps
4K DCI (29.97p/25.00p/24.00p/23.98p)/IPB Approx. 120 Mbps
4K DCI cropped (59.94p/50.00p)/ALL-I Approx. 940 Mbps
4K DCI cropped (59.94p/50.00p)/IPB Approx. 230 Mbps
4K DCI cropped (29.97p/25.00p/24.00p/23.98p)/ALL-I Approx. 470 Mbps
4K DCI cropped (29.97p/25.00p/24.00p/23.98p)/IPB Approx. 120 Mbps
4K UHD (59.94p/50.00p)/ALL-I Approx. 940 Mbps
4K UHD (59.94p/50.00p)/IPB Approx. 230 Mbps
4K UHD (29.97p/25.00p)/ALL-I Approx. 470 Mbps
4K UHD (29.97p/25.00p)/IPB Approx. 120 Mbps
Full HD (119.9p/100.0p)/ALL-I Approx. 360 Mbps
Full HD (59.94p/50.00p)/ALL-I Approx. 180 Mbps
Full HD (59.94p/50.00p)/IPB Approx. 60 Mbps
Full HD (29.97p/25.00p)/ALL-I Approx. 90 Mbps
Full HD (29.97p/25.00p)/IPB Approx. 30 Mbps
Full HD (29.97p/25.00p)/IPB (Light) Approx. 12 Mbps
Time code Can be added
Drop frame 119.9p/59.94p/29.97p supported
Sound recording

Built-in monaural microphone; external stereo microphone terminal included, and line input supported

Sound-recording level adjustable, wind filter provided, attenuator provided

Headphone Headphone terminal provided, volume adjustable
Movie Digital IS Available
Canon Log Available as a shooting option
Still photo shooting Not available during movie recording
HDMI output

Image output without information display available

4K output supported; Auto/1080p selectable


Type TFT color, liquid-crystal monitor
Screen size and dots Approx. 8.01 cm (3.15 in.) (3:2) with approx. 2.1 million dots
Brightness adjustment Manual (7 levels)
Color tone adjustment Warm tone, Standard, Cool tone 1, Cool tone 2
Interface languages 29
Touch-screen panel

Capacitive sensing

System status display Available for reference


Image display format Without shooting information, with basic information, with detailed shooting information, index display (4/9/36/100 images)
Highlight alert Overexposed highlights blink
AF point display Available (except under certain shooting conditions)
Grid display 3 types
Magnified view Approx. 1.5×–10×, initial magnification and position settable
Image search Search conditions settable (by rating, date, folder, protected, type of file)
Image browsing 1 image, 10 images, Specified number, Date, Folder, Movies, Stills, Protect, Rating
Image rotation Available
Image protection Available
Rating Available
Voice memo Recording and playback
Movie playback Available
Start/end movie scene editing Available
4K movie frame grab Extraction of specified movie frames and saving as JPEG images
Slide show All images or images matching the search conditions are played back automatically.
Image copying Available
Converting HEIF to JPEG Available
In-camera RAW image processing Brightness adjustment, White balance, Picture Style, Clarity, Auto Lighting Optimizer, High ISO speed noise reduction, Image quality, Color space, Lens aberration correction (Peripheral illumination correction, Distortion correction, Digital Lens Optimizer, Chromatic aberration correction, Diffraction correction)
Resizing Available
Cropping Available
Print order DPOF Version 1.1 compatible

Communication Functions


Standards compliance IEEE 802.11b/g/n
Transmission method DS-SS modulation (IEEE 802.11b), OFDM modulation (IEEE 802.11g/n)
Transmission frequency (central frequency)

Frequency: 2412 to 2462 MHz

Channels: 1–11

Connection method

Camera access point mode, infrastructure*

Wi-Fi Protected Setup supported


Authentication method: Open system, Shared key, or WPA/WPA2-PSK

Encryption: WEP, TKIP, AES

Compatible devices Smartphone, computer, FTP server

[Wired LAN]

Type Ethernet
Standards compliance IEEE 802.3u (10BASE-T/100BASE-TX/1000BASE-T)
Compatible devices

Access point, computer, EOS-1D X Mark III*

When syncing time between cameras


Standards compliance

Bluetooth Specification Version 4.2 compliant

(Bluetooth low energy technology)

Transmission method GFSK modulation
Compatible devices


GPS features

Compatible satellites GPS satellites (USA), GLONASS satellites (Russia), Quasi-Zenith Satellite System Michibiki (Japan)
Image geotagging Latitude, longitude, elevation, Coordinated Universal Time (UTC), signal acquisition status
Position update interval 1, 5, 10, 15, or 30 sec., or 1, 2, or 5 min.
Position data retention 10 min., 30 min., 1 hr., 3 hr., 6 hr., unlimited
Time adjustment Camera time can be set from GPS time data
Log data

One file generated daily, NMEA format

Change of time zone creates a separate file

Log data in internal memory can be transferred to cards or imported to a computer as log files

Log data deletion Available

Customization features

Custom Functions 38 functions
Custom Quick Control Available
Saving camera settings Up to 10 settings can be registered on a card
Custom shooting modes Still photo C1/C2/C3 modes, movie C1/C2/C3 modes
My Menu Up to 5 screens can be registered
Copyright information Text entry and appending possible
IPTC information Can be added


Digital terminal

SuperSpeed Plus USB (USB 3.1 Gen 2) equivalent, USB Type-C

Computer communication

HDMI mini OUT terminal Type C (auto switching of resolution)
External microphone input/line input terminal

3.5 mm diameter stereo mini-jack

Directional Stereo Microphone DM-E1, Stereo Microphone DM-E100, or commercially available external microphones can be connected

Headphone terminal 3.5 mm diameter stereo mini-jack
Remote control terminal For N3-type remote control units
System extension terminal Wireless File Transmitter WFT-E9 connection
Ethernet terminal RJ-45 terminal



Battery Pack LP-E19, quantity: 1

AC power usable with household power outlet accessories

Battery information Power source, Battery level, Shutter count, Recharge performance possible
Number of available shots

Viewfinder shooting:

Approx. 2850 shots at room temperature (+23°C/73°F), approx. 2360 shots at low temperatures (0°C/32°F)

Live View shooting:

Approx. 610 shots at room temperature (+23°C/73°F), approx. 530 shots at low temperatures (0°C/32°F)

With a fully charged Battery Pack LP-E19.

Movie recording time available

Total approx. 4 hr. 40 min. at room temperature (+23°C/73°F)

Total approx. 4 hr. 10 min. at low temperatures (0°C/32°F)

Using a fully charged Battery Pack LP-E19 with Movie Servo AF disabled to record Full HD 29.97p/25.00p IPB (Standard)

Dimensions and weight

Dimensions (W×H×D) Approx. 158.0×167.6×82.6 mm/6.22×6.60×3.25 in.
Weight Approx. 1440 g/50.80 oz. (including battery pack and card)/Approx. 1250 g/44.09 oz. (body only)

Operating environment

Working temperature range 0–45°C (32–113°F)
Working humidity 85% or less
  • All data above is based on Canon testing standards and CIPA (Camera & Imaging Products Association) testing standards and guidelines.
  • Dimensions and weight listed above are based on CIPA Guidelines (except weight for camera body only).
  • Product specifications and appearance are subject to change without notice.
  • If a problem occurs with a non-Canon lens attached to the camera, contact the respective lens manufacturer.




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